Fagot-stitch seam.



C. E. BENTLEY.

FAGOT STITCH SEAM. APPLICATION FILED JUNE 27,1911.

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CHARLES EDWIN BENTLEY, OF NEW YORK, N. Y.

FAGOT-STITCH SEAM.

Specification. of Letters Patent.

Patented Apr. 1c, 1918.

Application iled .Tune 27, 1917. Serial No. 177,195.

To all w/Lom t may concern.'

Be it known that I, CHARLES EDWIN BENTLEY, a citizen of the United States, and a resident of the borough of Manhattan, city of New York, in the county of New York and State of New York, have invented a certain new and useful Fagot-Stitch Seam, of which the following is a specication.

This invention relates to a seam having fagot stitches, which may be produced by means of a sewing machine.

The object is to improve the appearance of the fagot stitches by incorporating therewith an auxiliary ornamental thread.

The invention consists in having a main thread extending alternately from one side to the other of the seam and in attaching the thread to the fabric by means of shuttle threads which pass through loops formed in the main thread at each edge of the seam; an auxiliary thread being looped around the strands of each of said loops of the main thread, thereby drawing said strands t0- gether. The invention further consists in alternately twisting the loops of the auxiliary thread in opposite directions, so that strands thereof connecting any two of such loops occupy a similar position with reference to the main thread, whereby a large part of one of such strands is exposed to view while obscuring parts of other of such strands.

In the accompanying drawing, Figure 1 is a view of the upper side of the seam, in its preferred form.

Fig. 2 is a view of the reverse side, showing shuttle threads which pass through loops of the main thread at each edge of the seam.

Fig. 3 is a section on the line III-III of Fig. i.

Fig. f1 is a section on the line IV--IV of Fig. 1.

Fig. 5 is a view of the upper side of a modied seam in which the loops of the auxiliary thread have not been alternately twisted in opposite directions.

Fig. 6 is a view of the reverse side of the modification shown in Fig. 5, .showing the main thread secured to the fabric by passage of the main thread through loops formed therein at each edge of the seam.

Fig. 7 is a view of a modified seam in which the main thread is attached to the fabric by means of independent threads which pass through loops formed in the main thread, and through the fabric at each edge of the seam, and are secured to the fabric by means of shuttle threads.

In forming the seam, a sewing machine needle is used, carrying the main thread 1. The needle is placed a little ofl" the center of the needlebar, and the latter is given a half revolution between stitches, so that the main thread alternately presents a loop 2 for passage therethrough of a shuttle thread 3 at one edge of the seam, and then a loop 4 at the other edge for passage therethrough of another shuttle thread 5, whereby a zig-zag stitch of the main thread is formed above the pieces 0f fabric 6 and 7.

During formation of this zig-Zag stitch, an y auxiliary thread 8 is carried alternately from one side to the other across the seam, so that a twisted loop 9 isformed therein just before the needle carries the main thread down and through said twisted loop 9 and the piece of fabric 6 at one edge of the seam. The shuttle thread 3 passes through the loop 2 of the main thread and serves to hold the loop 2 to the fabric when the needle moves up. After the needle carries the main thread up and over toward the other edge of the seam, the loop 9 slips along the two strands of the loop 2 of the main thread toward the center of the seam, thereby drawing said strands close together, as shown in Figs. 1 and 2. Just before the needle carries the main thread down toward the piece of cloth 7 Vat the other edge of the seam, the

auxiliary thread is carried over, forward -and back, so that a loop 10 is formed therein having a twist opposite to that of loop 9, and as the needle goes down it carries the main thread down through said opposite twisted loop 10 and the piece of cloth 7. The

shuttle thread 5 passes through the loop 4 of the main thread and serves to hold the loop t to the fabric when the needle moves up. After the needle carries the main thread up and over toward the pieceof fabric 6, the loop 10 slips along the strands of the loop 11 of the main thread toward the center of the seam, thereby drawing said strands close together. By reference to Fig. 2, it will be seen that twisting of loop 10` in a. direction opposite to that of loop 9 causes the portion of the auxiliary thread connecting such loops to be next tothe main thread, While the portion of the auxiliary thread connecting said loop 10 to the voppositely tende partially over the part connecting loop 10 to loop 9, and partially over the part connecting loop 11 to the oppositely twisted loop 12 of another succeeding stitch, thereby causing the part connecting loops 10 and 11 to be prominently exposed to view, while the parts connecting loops 9 and 10 and loops 11 and 12 are correspondingly obscured. Also it will be seen that the part of the auxiliary thread connecting loops 10 and 11 stands in the center of the seam, and tends to draw the parts thereof connecting loops 9 and 10 and loops 11 and 12 in toward the center of the seam, so that they stand approximately in the same line of view as the parts of the main thread which connect vloops 2 and l and loops's: and 13 thereof.

It will be noted that the auxiliary thread extends from the back of loop 9 forward to the front side of loop 10, then baclr around the strands of loop 4f of the main thread, and forward to the front side of loop 11, then baclr around the strands of loop 13 of the main thread, and forward to the front side of loop 12, thereby caus- -ing the strands of the loops i and 13 of thc main thread to be drawn close together.

Referring to the modifications shown in Figs. 5 and 6, a Zig-zag stitch ofthe main thread 14k is formed above the pieces of fabric 15 and 16, and the auxiliary thread 17 is passed in loops 18 around the strands 19 of the main thread. rEhe loops 18 of the auxiliary thread are all formed by atwist in the same direction which causes the part of the thread connecting the loops to be shifted away from the saine line of view as the parts of the main thread 1st which connect the strands 18 thereof, and causes part of each of such parts of the auxiliary thread to be exposed to view to a similar extent.

As shown in Fig. 6, the main thread 14s may beV secured to the pieces of fabric 15 and 16 by means of chain stitches which are formed at each edge of the searn by interlocking loops 20 and 21 of the main thread, in a manner that will be readily understood. i

ln the modification shown in Fig. 7, the main thread 22 may be carried by a finger adapted to pass the main thread through the oppositely twisted loops 23 of the auxiliary thread 24C and to form twisted loops 25 through which .needles may carry independent threads 26 and 27 down through the pieces of fabric 28 and 29, which latter threads may be held to the fabric by means of shuttle threads passing through loops formed therein.

Having thus described my invention, what 1 claim is:

l. A fagot stitch seam, comprising suitable fabric; amain thread extending alternat'ely from one side to the other and provided with a series of loops at each edge of the seam.; an auxiliary thread extending alternately from one side to the other and provided with a series of twisted loops near each edge of the seam; one of said loops of the main thread being passed through one of said twisted loops of the auxiliary Vthread and attachedto said fabric at one edge of the seam, and a succeeding loop of said main thread being passed through a succeeding twisted loop of said auxiliary thread and attached to said fabric at the other edge of the seam, the last named loop of the auxiliary thread being twisted to a position different from the first named twisted loop thereof, whereby the part of the auxiliary thread connecting said twisted loops occupy a similar positiony with relation to other parts of the same thread, and to strands of said loops of the main thread.

2. A fagot stitch seam, comprising suitable fabric; a main thread and an auxiliary thread, said threads extending alternately from one side to the other and provided with a series of loops at each edge of the seam; any one of said loops of the main thread being passed through one of said loops of the auxiliary thread and attached to said fabric at one edge of the seam, and a second loop of said main thread being passed through a second loop of said auxil* iary thread and attached to said fabric at the other edge of the seam; said auxiliary thread extending from the back of the'lirst named loop thereof forward to the front side of said second loop thereof, then back around the strands of the second named loop of the main thread, and forward to the front side of a third loop of the auxiliary thread, then back around the strands of a third loop of the main thread, and forward to a fourth loon of the auxiliarv thread, thereby causing the strands of said loops of the main thread to be drawn close together.

3. Afagot stitch seam, comprising suitable fabric; a main thread extending alternately from one side to the other and provided with a series of loops at each `edge of the seam; an auxiliary thread extending alternately from one side to the other `and provided with a series of twisted loops near each edge of the seam; one of said loops of the main thread being passed through one of said twisted loops of the auxiliary thread and attached to said fabric at lone edge of the seam, and a second loop of said main thread being passed through a second twisted loop of said auxiliary thread and attached to said fabric at the other edge of the seam; the second named loop of the auxiliary thread being twisted to a position different from the first named twisted loop, thereby causing said auxiliary thread to extend from the first named loop thereof, forward to the lfront side of'thesecond twisted ond named loop thereof forward to the front side of a third twisted loop of the auxiliary thread, then back around the strands of a third loop of the main thread, and forward between Said main thread and 10 said part of the auxiliary thread extending from the second to the third loops of the auxiliary thread, whereby the parts of said auxiliary thread connecting said loops thereof are drawn into the same line of View as the parts of said main thread connecting the loops thereof.

Signed in the county and State of New York this 25th day of June, A. D. 1917.

CHARLES vEDWIN BENTLEY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner o! Patenti,

Washington, D. C. 

